You should especially do this stretch if you sit all day.-Lie on your back on a padded surface. Begin with your legs straight in front of you. Bend the left leg up and place the left foot on the ground near your butt. Bend the right leg up and rest the right ankle across the left knee.-Reach your hands around your left shin or left thigh and pull it towards your chest. Your right hand will go through the hole in between your legs.Check out our other great exercises to rid sciatica!